Details about the benchmark Korea Composite Stock Price Index are displayed on the screen of a dealing room at Hana Bank in Seoul, Monday. Yonhap

The Korea Exchange (KRX) on Monday activated a trading halt on the main bourse amid an extended bull run of big-cap semiconductor shares.

A buy-side order in the Korea Composite Stock Price Index (KOSPI) futures was suspended for five minutes at around 9:29 a.m., according to the KRX.

The benchmark KOSPI opened at a fresh high of 7,775.31, up 277.31 points, or 3.7 percent, and further extended its gains to breach the landmark 7,800 points.

A buy-side sidecar is triggered when the KOSPI 200 Futures index increases 5 percent or more for at least one minute.

Source: Korea Times News